2 PRIMER Flashcards
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LEAD OF ACCOMMODATION
Accommodative response is ________ the accommodative stimulus
- less than
- greater than
greater than
Under accommodative response of the eye, if it exceeds, it will fall in front of the retina and is termed as _____
- LAG OF ACCOMMODATION
- LEAD OF ACCOMMODATION
LEAD OF ACCOMMODATION
Image plane in the eye which represents the extension of the brain
- Cornea
- Retina
Retina
Location of the eye that receives all the necessary information
- Cornea
- Retina
Retina
FACTORS THAT INFLUENCE REFRACTIVE STATUS
- Length of the eyeball
- Power of the cornea
- Power of the lens
- Depth of anterior chamber
- None of the above
- All of the above
- All of the above except: ____
All of the above
Posterior principal point is focused on the retina with accommodation relaxed
- EMMETROPIA
- AMETROPIA
EMMETROPIA
Variation from emmetropia (ERROR OF REFRACTION)
- EMMETROPIA
- AMETROPIA
AMETROPIA
Posterior principal point is focused in front or behind the retina with accommodation relaxed
- EMMETROPIA
- AMETROPIA
AMETROPIA
WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER EMMETROPIA AT FAR
- exactly
- in front
- behind
EMMETROPIA AT FAR
RELAXED: exactly on the retina
ACTIVE: in front of the retina
WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER EMMETROPIA AT NEAR
- exactly
- in front
- behind
EMMETROPIA AT NEAR
RELAXED: behind the retina
ACTIVE: exactly on the retina
WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER MYOPIA AT FAR
- more in front
- in front
- behind
MYOPIA AT FAR
RELAXED: in front of the retina
ACTIVE: more in front of the retina
WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER MYOPIA AT NEAR
- exactly
- in front
- behind
MYOPIA AT NEAR
RELAXED: exactly on the retina
ACTIVE: in front of the retina
WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER HYPEROPIA AT FAR
- exactly
- in front
- behind
HYPEROPIA AT FAR
RELAXED: behind the retina
ACTIVE: exactly on the retina
WHERE IS THE POINT OF FOCUS IN THE RETINA IF THE ACCOMMODATION IS RELAXED AND ACTIVE (2 ANSWERS) UNDER HYPEROPIA AT NEAR
- more behind
- in front
- behind
HYPEROPIA AT NEAR
RELAXED: more behind the retina
ACTIVE: behind the retina
Process wherein an incident ray of light strikes the eye and its transmission through the various transparent media
- PHYSICAL PROCESS
- THE PHOTO-CHEMICAL PROCESS
PHYSICAL PROCESS
Light –> transmission –> transparent media
- PHYSICAL PROCESS
- THE PHOTO-CHEMICAL PROCESS
PHYSICAL PROCESS
The transformation of a radiant energy at the neuro-epithelium of the retina into some other form of energy capable of stimulating the receptor cells
- PHYSICAL PROCESS
- THE PHOTO-CHEMICAL PROCESS
THE PHOTO-CHEMICAL PROCESS
Light–>retina–>other form of energy–>photoreceptors
- PHYSICAL PROCESS
- THE PHOTO-CHEMICAL PROCESS
THE PHOTO-CHEMICAL PROCESS
The generation of nerve impulse in the retina and its transmission by a chain of neuron to the central nervous system
- THE PSYCHOLOGICAL PROCESS
- THE NEURO-MUSCULAR PROCESS
THE NEURO-MUSCULAR PROCESS
This constitutes the real seeing
- THE PSYCHOLOGICAL PROCESS
- THE NEURO-MUSCULAR PROCESS
THE PSYCHOLOGICAL PROCESS
The Interpretation of the stimulus received by the retina
- THE PSYCHOLOGICAL PROCESS
- THE NEURO-MUSCULAR PROCESS
THE PSYCHOLOGICAL PROCESS
The visual reaction of the brain
- THE PSYCHOLOGICAL PROCESS
- THE NEURO-MUSCULAR PROCESS
THE PSYCHOLOGICAL PROCESS
Thin transparent membrane where images are cast and where were nerve impulses are generated and conveyed to the optic nerve
- retina
- optic radiations
retina
Nerve of sight
- OPTIC NERVE
- OPTIC CHIASMA
OPTIC NERVE
functions to unite the brain and the retina
- OPTIC NERVE
- OPTIC CHIASMA
OPTIC NERVE
Non-decussating, uncrossed, external/lateral fibers located at temporal half
- OPTIC NERVE
- OPTIC CHIASMA
OPTIC CHIASMA
Decussating, crossed, Internal/medial fibere located at nasal half
- OPTIC NERVE
- OPTIC CHIASMA
OPTIC CHIASMA
under optic chiasma,
Non-decussating, uncrossed, external/lateral fibers located at _____ half
- temporal
- nasal
temporal
under optic chiasma,
Decussating, crossed, Internal/medial fibere located at _____ half
- temporal
- nasal
nasal
Posterior continuation of optic chiasma with its fibers terminating at lateral geniculate body
- OPTIC TRACT
- LGB
- OPTIC RADIATION
OPTIC TRACT
Serves as the end station for some visual fibers
- OPTIC TRACT
- LGB
- OPTIC RADIATION
LGB
Regarded as sub-cortical visual center of brain, serving as a relay station between retina and cortex
- OPTIC TRACT
- LGB
- OPTIC RADIATION
LGB
carry visual impulse to area striata
- OPTIC TRACT
- LGB
- OPTIC RADIATION
OPTIC RADIATION
AREA STRIATA
- LGB
- OPTIC RADIATION
- BROADMAN AREA #17
BROADMAN AREA #17
Visual/optic center of the brain located at medial aspect of the occipital lobe
- LGB
- OPTIC RADIATION
- BROADMAN AREA #17/AREA STRIATA
BROADMAN AREA #17/AREA STRIATA
True visual cortex (true receptive center of visual impressions)
- LGB
- OPTIC RADIATION
- BROADMAN AREA #17/AREA STRIATA
BROADMAN AREA #17/AREA STRIATA
Any problems on the pathway is projected on the _____ side of the visual field
- same
- opposite
opposite
